import axios from 'axios'
import { Message, MessageBox } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import Qs from 'qs'

// create an axios instance
const service = axios.create({
  baseURL: process.env.BASE_API, // api 的 base_url
  timeout: 5000, // request timeout
  paramsSerializer: function(params) {
    return Qs.stringify(params)
  },
  withCredentials: true // 允许携带cookie
})

// request interceptor
service.interceptors.request.use(
  config => {
    // Do something before request is sent
    if (store.getters.token) {
      // 自定义header一定要在后台定义该header
      config.headers['X-Token'] = getToken()
    }
    config.headers['Content-Type'] = 'application/x-www-form-urlencoded'
    return config
  },
  error => {
    // Do something with request error
    console.log(error) // for debug
    Promise.reject(error)
  },
)

// response interceptor
service.interceptors.response.use(
  response => {
    const res = response.data
    if (res.code === 1003) {
      MessageBox.confirm('你已被登出，可以取消继续留在该页面，或者重新登录', '确定登出', {
        confirmButtonText: '重新登录',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        store.dispatch('FedLogOut').then(() => {
          location.reload() // 为了重新实例化vue-router对象 避免bug
        })
      })
    }
    return res
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
